
EMCO WINNC SINUMERIK 810/820 T
B 2
BASICS
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Zero Offset
With EMCO lathes the machine zero "M" lies on
the rotating axis and on the end face of the spindle
flange. This position is unsuitable as a starting
point for dimensioning. With the so-called zero
offset the coordinate system can be moved to a
suitable point in the working area of the machine.
In the setting data zero offset are four adjustable zero
offsets available.
When you define a value in the offset register, this
value will be considered with call up in program (G54
- G57) and the coordinate zero point will be shifted
from the machine zero M to the workpiece zero W.
The workpiece zero point can be shifted within a
program with "G58, G59 - programmable zero
offset" in any number.
More informations see in command description G58,
G59.
Zero offset from the machine zero point to the
workpiece zero point
Coordinate System
The X coordinate lies in the direction of the cross
slide, the Z coordinate lies in the direction of the
longitudinal slide.
Coordinate values in minus direction describe
movements of the tool system towards the workpiece,
values in plus direction away from the workpiece.
Coordinate System with Absolute
Programming
The origin of the coordinate system lies at the machine
zero "M" or at the workpiece zero "W" following a
programmed zero offset.
All target points are described from the origin of the
coordinate system by the indication of the respective
X and Z distances.
X distances are indicated as the diameter (as
dimensioned on the drawing)
Coordinate System with Incremental
Programming
The origin of the coordinate system lies at the tool
mount reference point "N" or at the cutting tip after a
tool call-up.
With incremental programming the actual pathes of
the tool (from point to point) are described.
X will be entered as radius.
Absolute coordinates relate to a fixed position,
incremental coordinates to the tool position.
The X and -X in brackets are valid for the PC
TURN 50/55 because the tool is in front of the
turning centre at this machine.
Absolute
Incremental
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